ADS7863ADBQR

Product Overview

Category: Analog-to-Digital Converter (ADC)

Use: The ADS7863ADBQR is a high-performance, 12-bit, dual-channel ADC designed for precision data acquisition applications. It converts analog signals into digital format with high accuracy and speed.

Characteristics: - Resolution: 12 bits - Sampling Rate: Up to 200 kSPS (kilosamples per second) - Input Voltage Range: ±Vref - Power Supply: 2.7V to 5.25V - Low Power Consumption: 1.8 mW at 5V - Small Package Size: 16-pin TSSOP (Thin Shrink Small Outline Package) - Integrated Reference Voltage Source

Packaging/Quantity: The ADS7863ADBQR is available in a 16-pin TSSOP package. It is typically sold in reels of 2500 units.

Specifications

• Resolution: 12 bits
• Sampling Rate: Up to 200 kSPS
• Input Voltage Range: ±Vref
• Power Supply Voltage Range: 2.7V to 5.25V
• Power Consumption: 1.8 mW at 5V
• Operating Temperature Range: -40°C to +85°C
• Package Type: 16-pin TSSOP

Pin Configuration

The ADS7863ADBQR has a total of 16 pins. The pin configuration is as follows:

Pin 1: VREF- Pin 2: IN1+ Pin 3: IN1- Pin 4: AGND Pin 5: REFOUT Pin 6: VDD Pin 7: VREF+ Pin 8: IN2+ Pin 9: IN2- Pin 10: DGND Pin 11: D1 Pin 12: D0 Pin 13: CS Pin 14: SCLK Pin 15: SDATA Pin 16: EOC

Functional Features

• Dual-Channel Conversion: The ADS7863ADBQR can simultaneously convert two analog input signals into digital format.
• High Resolution: With a 12-bit resolution, it provides accurate conversion of analog signals.
• Fast Sampling Rate: The ADC can sample at rates up to 200 kSPS, allowing for real-time data acquisition.
• Integrated Reference Voltage Source: The device includes an integrated reference voltage source, eliminating the need for an external reference.

Advantages and Disadvantages

Advantages: - High accuracy and precision in converting analog signals to digital format. - Dual-channel capability enables simultaneous conversion of multiple signals. - Low power consumption makes it suitable for battery-powered applications. - Small package size allows for space-efficient designs.

Disadvantages: - Limited resolution compared to higher-end ADCs. - May not be suitable for applications requiring extremely high sampling rates.

Working Principles

The ADS7863ADBQR utilizes successive approximation register (SAR) architecture to convert analog signals into digital format. It employs a sample-and-hold circuit to capture the analog input voltage, which is then processed by the SAR algorithm to determine the corresponding digital code. The converted digital data is then made available through the serial interface.

Application Field Plans

The ADS7863ADBQR is commonly used in various applications that require precise data acquisition, such as:

1. Industrial Automation: Monitoring and control systems that require accurate measurement of analog signals.
2. Medical Equipment: Vital sign monitoring devices, patient monitoring systems, and medical instrumentation.
3. Test and Measurement: Data acquisition systems, oscilloscopes, and signal analyzers.
4. Communication Systems: Base stations, wireless transceivers, and network analyzers.
5. Automotive Electronics: Engine control units, sensor interfaces, and battery management systems.

Alternative Models

Here are some alternative models that offer similar functionality to the ADS7863ADBQR:

1. ADS7862: 12-bit, single-channel ADC with similar specifications.
2. ADS8863: 16-bit, dual-channel ADC with higher resolution.
3. MCP3202: 12-bit, dual-channel ADC from Microchip Technology.
4. LTC1867: 16-bit, dual-channel ADC from Linear Technology.

These alternative models can be considered based on specific application requirements and desired performance characteristics.

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